12 letters · 20 points in Scrabble
noun a psychologist who subscribes to behaviorism
adjective of or relating to behaviorism
originEtymology tree English behaviour Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Hellenic *-tās Ancient Greek -τής (-tḗs) Ancient Greek -ῐστής (-ĭstḗs)bor. Latin -istader. Old French -istebor. Middle English -ist English -ist English behaviourist From behaviour + -ist.
Etymology from Wiktionary, CC BY-SA 3.0